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DeWalt DXCM303.C Instruction Manual page 18

Single stage, belt drive, electric air compressor

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WARNING: Risk of unsafe operation. Unit cycles automatically when
power is on. When performing maintenance, you may be exposed to
voltage sources, compressed air, or moving parts. Personal injuries can
occur. Before performing any maintenance or repair, disconnect power
source from the air compressor and bleed off all air pressure.
CHECKING SAFETY VALVE
WARNING: Hot surfaces. Risk of burn. Tubes, pump head, and surround-
ing parts are very hot, do not touch (see the Hot Surfaces identified in Fig.
4). Allow air compressor to cool prior to servicing.
DANGER: Risk of bursting. If the safety valve does not work properly,
over-pressurization may occur, causing tank rupture or an explosion.
WARNING: Risk from flying objects. Always wear certified safety
equipment: ANSI Z87.1 eye protection (CAN/CSA Z94.3) with side shields.
WARNING: Risk from noise. Use ear protection (ANSI S12.6 (S3.19) as air
flow noise is loud when draining.
Before starting air compressor, pull the
ring on the safety valve (A) to make sure
that the safety valve operates freely.
If valve is stuck or does not operate
smoothly, it must be replaced with the
same type of valve.
CHECKING AIR FILTER
WARNING: Hot surfaces. Risk of burn. Tubes, pump head, and surround-
ing parts are very hot, do not touch (see the Hot Surfaces identified in Fig.
4). Allow air compressor to cool prior to servicing.
A dirty air filter will not allow the air compressor to operate at full
capacity. Keep the air filter clean at all times.
1. Ensure Auto/Off switch is in the OFF (0) Position.
2. Allow unit to cool.
3. Unsnap/Rotate the air filter cover to
remove (S).
4. Check the filter element. If it is dirty,
blow compressed air through the filter
element for 10-15 seconds or replace
if needed. If the filter is filled with paint, replace it.
5. Place element into housing and reattach the air filter cover.
CAUTION: Risk of unsafe operation. Do not operate without air filter.
DRAINING TANK (Fig. 5)
Fig. 19
WARNING: Risk of unsafe operation. Tanks contain high pressure air.
Keep face and other body parts away from outlet of drain. Use eye
protection [ANSI Z87.1 (CAN/CSA Z94.3)] when draining as debris can be
kicked up into face.
WARNING: Risk from noise. Use ear protection (ANSI S12.6 (S3.19) as air
flow noise is loud when draining.
NOTICE: All compressed air systems generate condensation
that accumulates in any drain point (e.g., tanks, filter,
aftercoolers, dryers). This condensate contains lubricating
oil and/or substances which may be regulated and must be
disposed of in accordance with local, state, and federal laws and
regulations.
1. Set the Auto/Off switch to "OFF (0)".
18
Fig. 20

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